<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
		#result {
		   display: flex;
		   justify-content: center;
		   color: #ec181e;
		   font-size: 25vw;
		   font-weight: 900;
		   text-shadow: 0 6px 4px rgba(255, 100, 100, 0.6);
		}
		</style>
	</head>
	<body>
		
		<div id="result">
			00:00:00
		</div>
		
		<script>
			var intervalID = setInterval(startTimer,1000);
			
			function startTimer(){
				var date = new Date();
				var x = document.getElementById("result");
				x.innerHTML=date.getHours()+":"+date.getMinutes()+":"+date.getSeconds();
			}
		</script>
	</body>
</html>